seeking parish

James Gaynor arrived in NB, Canada in 1863,,,was 40 years of age,,,John Gainor ,60 years old ,Margret age53 and Thomas age25 all Gainors were listed as in residence in Chatam,N B , Canada in 1827. These are direct relatives of mine and I intend to visit Ireland in next 12 months to attempt to establish contact with person who know of this family history,